Properties of Molybdenum

Atomic number: 42
Symbol: Mo
Atomic weight: 95.95
Physical state at room temperature: Solid
Color: Silvery-white
Melting point: 2,623 degrees Celsius
Boiling point: 4,639 degrees Celsius

Occurrence and Uses

Molybdenum is found in various minerals, including molybdenite (MoS2) and wulfenite (PbMoO4). It is commonly used in:

Alloys, particularly in steel production, to increase strength and corrosion resistance
High-temperature applications, such as in the aerospace and electrical industries
Catalysts in the petroleum industry
Electronic and electrical components

Biological Role

Molybdenum is an essential trace element for both plants and animals, playing a crucial role in various biological processes. In humans, it is a cofactor for enzymes involved in the metabolism of certain amino acids and the detoxification of sulfites.

Environmental Impact

Molybdenum can be released into the environment through industrial processes, mining activities, and the burning of fossil fuels. It can accumulate in soil and water, potentially impacting ecosystems and human health.

Study Tips

To master the topic of molybdenum, consider the following study tips:

Understand the chemical properties of molybdenum, including its reactivity and bonding characteristics.
Explore the various industrial and biological applications of molybdenum to appreciate its significance in different fields.
Study the environmental impact of molybdenum and its role in natural ecosystems.
Practice identifying molybdenum in its various forms, such as ores and compounds, to develop a comprehensive understanding of its occurrence.
Review the historical significance of molybdenum and its discovery to gain a broader perspective on its importance in human civilization.